transmitter and receiver 433mhz wireless receiver 4 Channel remote controller KL-K400C

1. Match code:

Hold learning button and learning indicator light blinks, then press a buttons of remote control, if indicator lights flashes 3 times, match code successfully. Maximum 20 remote controls can be matched.

2. Delete code:

Hold learning button till the indicator LED lights and then off, delete successfully.

3. Set working mode:

S1 & S2 program the sequence as follows:
Jumper on S1→ Toggle
Jumper on S2→ Latching
No Jumper on S1 &S2→ Momentary

Working Mode:

1. Momentary: Press remote button A, the corresponding relay on the receiver is on; release button A, the relay is off, the same as others.
2. Toggle: Press remote button A, the corresponding relay on the receiver is on; press button A again, the relay is off, the same as others.
3. Latching: Press remote button A, the relay A is on, B is off; press button B, the replay B is on, A is off.

Wiring Way & Diagram:

B=Normally Closed, K=Normally Open, G=Common.
Please refer to below picture as wiring diagram:

What you want to know ?

Q1: How long distance can this controller can do ?
A1: The distance is depend on the range of remote you use, ours general remote is about 30-800m.

Q2: How long if we use in city ?
A2: The building is the most effect factor for distance and our tested
base on open space without interference,subject to actual on the spot.

Q3: How many pieces remote can work at same controller?
A3: Most of our controller can save 20pcs remotes.

Q4: Whether it can be copied by duplicator ,it's safety
A4: We didn't find any one can copy ours until now ,don't worry.

Q5: Can we change supply voltage like 24Vdc ?
A5: Of course ,we support this service.

Q6: Can you print our model number on PCB even logo on enclosure?
A6: Yes and we offer OEM/ODM if you need .We're not only manufacturer but also have R&D who can finish these work well.

Q7: What's modulation ? ASK or FSK ?
A7: ASK and FSK are the most popular frequency modulation schemes. Our most products are ASK. Sometimes, we determine which should be used based on customer's demand.

Q8: Can we use remote control which made by other manufacturer ?
A8: We don't suggest to do so because our's code is private